mirror of
https://github.com/extremscorner/not64.git
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d7ca5e913f
Added M.2 Loader support. Added directory structure creation. Added USB storage device name compatibility. Fixed Wii Remote extension controller hotplug. Fixed LoadButtonSlot argument. Fixed RSP DMA memory alignment. Fixed viewport flipping. Other minor fixes.
104 lines
3 KiB
C
104 lines
3 KiB
C
/**
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* IDE EXI Driver for Gamecube & Wii
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*
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* Based loosely on code written by Dampro
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* Re-written by emu_kidid
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*
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* Very helpful ATA document: http://www.t10.org/t13/project/d1410r3a-ATA-ATAPI-6.pdf
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**/
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#ifndef ATA_H
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#define ATA_H
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#include <gcutil.h>
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#include <gctypes.h>
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#include <ogc/disc_io.h>
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#define DEVICE_TYPE_GC_ATA (('G'<<24)|('A'<<16)|('T'<<8)|'A')
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extern const DISC_INTERFACE __io_ataa;
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extern const DISC_INTERFACE __io_atab;
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extern const DISC_INTERFACE __io_ata1;
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// ATA status register bits
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#define ATA_SR_BSY 0x80
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#define ATA_SR_DRDY 0x40
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#define ATA_SR_DF 0x20
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#define ATA_SR_DSC 0x10
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#define ATA_SR_DRQ 0x08
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#define ATA_SR_CORR 0x04
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#define ATA_SR_IDX 0x02
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#define ATA_SR_ERR 0x01
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// ATA error register bits
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#define ATA_ER_UNC 0x40
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#define ATA_ER_MC 0x20
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#define ATA_ER_IDNF 0x10
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#define ATA_ER_MCR 0x08
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#define ATA_ER_ABRT 0x04
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#define ATA_ER_TK0NF 0x02
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#define ATA_ER_AMNF 0x01
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// ATA head register bits
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#define ATA_HEAD_USE_LBA 0x40
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// NOTE: cs0 then cs1!
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// ATA registers address val - cs0 cs1 a2 a1 a0
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#define ATA_REG_DATA 0x10 //1 0000b
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#define ATA_REG_COMMAND 0x17 //1 0111b
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#define ATA_REG_ALTSTATUS 0x0E //0 1110b
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#define ATA_REG_DEVICE 0x16 //1 0110b
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#define ATA_REG_DEVICECONTROL 0x0E //0 1110b
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#define ATA_REG_ERROR 0x11 //1 0001b
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#define ATA_REG_FEATURES 0x11 //1 0001b
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#define ATA_REG_LBAHI 0x15 //1 0101b
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#define ATA_REG_LBAMID 0x14 //1 0100b
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#define ATA_REG_LBALO 0x13 //1 0011b
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#define ATA_REG_SECCOUNT 0x12 //1 0010b
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#define ATA_REG_STATUS 0x17 //1 0111b
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// ATA commands
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#define ATA_CMD_IDENTIFY 0xEC
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#define ATA_CMD_READSECT 0x21
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#define ATA_CMD_READSECTEXT 0x24
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#define ATA_CMD_WRITESECT 0x30
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#define ATA_CMD_WRITESECTEXT 0x34
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#define ATA_CMD_UNLOCK 0xF2
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// ATA Identity fields
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// all offsets refer to word offset (2 byte increments)
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#define ATA_IDENT_SERIAL 10 // Drive serial (20 characters)
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#define ATA_IDENT_MODEL 27 // Drive model name (40 characters)
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#define ATA_IDENT_LBASECTORS 60 // Number of sectors in LBA translation mode
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#define ATA_IDENT_COMMANDSET 83 // Command sets supported
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#define ATA_IDENT_LBA48SECTORS 100 // Number of sectors in LBA 48-bit mode
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#define ATA_IDENT_LBA48MASK 0x4 // Mask for LBA support in the command set top byte
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// typedefs
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// drive info structure
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typedef struct
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{
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u64 sizeInSectors;
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int lba48Support;
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char model[48];
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char serial[24];
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} typeDriveInfo;
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typedef struct
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{
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u16 type; //1 = master pw, 0 = user
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char password[32];
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u8 reserved[478];
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} unlockStruct;
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extern typeDriveInfo ataDriveInfo;
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// Prototypes
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int ataDriveInit(int chn);
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int ataUnlock(int chn, int useMaster, char *password);
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int ataReadSectors(int chn, u64 sector, unsigned int numSectors, unsigned char *dest);
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int ataWriteSectors(int chn, u64 sector,unsigned int numSectors, unsigned char *src);
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bool ataIsInserted(int chn);
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int ataShutdown(int chn);
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#endif
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